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Finding the Fourth Proportional to 346,564.80, 519,458.40 and 196,876.80

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Solution

The fourth proportional to 346,564.80, 519,458.40 and 196,876.80 is: 295,094.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,564.80 : 519,458.40 = 196,876.80 : x
  2. Step 2: Convert to fraction form
    346,564.80/519,458.40 = 196,876.80/x
  3. Step 3: Cross multiply
    346,564.80x = 519,458.40 × 196,876.80
  4. Step 4: Simplify right side
    346,564.80x = 102,269,307,525.12
  5. Step 5: Solve for x
    x = 102,269,307,525.12/346,564.80
  6. Step 6: Final answer
    x = 295,094.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.